Which term describes a mixture that is not uniform throughout?

Question

BlackTom AI · Accepted Answer

Let’s break down what is meant by a mixture that is not uniform throughout. 
Option 1: homogeneous. This term describes a mixture that is uniform in composition, where the same properties are present throughout the sample. Since the question asks for a mixture that is not uniform, this option describes the opposite and is therefore incorrect.
Option 2: solution. A solution is a classic example of a homogeneous mixture, where the solute is evenly distributed at the molecular level. Because the statement would imply uniform composition, it does not match the scenario of a nonuniform mixture. This makes it a false choice here.
Option 3: heterogeneous. A heterogeneous mixture has visibly different parts or phases, and its composition is not uniform throughout the substance. This aligns precisely with the description in the question, making this the correct characterization.
Option 4: chemically bonded. When substances are chemically bonded, they form a compound, which is a pure substance with fixed composition, not a mixture. This term incorrectly conflates mixtures with compounds, so it does not describe a nonuniform mixture.
Thus, evaluating each option against the idea of nonuniformity shows that heterogeneous accurately captures the concept, while the others misrepresent either uniformity, type of mixture, or the distinction between mixtures and compounds.

HonNxtGenChem A HNGC Module 2 Practice Quiz

Which term describes a mixture that is not uniform throughout?

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